CN208781729U - A kind of high-speed switch opening/closing operation mechanism - Google Patents
A kind of high-speed switch opening/closing operation mechanism Download PDFInfo
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- CN208781729U CN208781729U CN201821244582.8U CN201821244582U CN208781729U CN 208781729 U CN208781729 U CN 208781729U CN 201821244582 U CN201821244582 U CN 201821244582U CN 208781729 U CN208781729 U CN 208781729U
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- connecting rod
- upper connecting
- snap arm
- sleeve
- hole
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Abstract
The utility model discloses a kind of high-speed switch opening/closing operation mechanisms, belong to device for switching technical field.The utility model includes sleeve, fixed link, upper connecting rod and lower connecting rod；The sleeve is sheathed on outside upper connecting rod, the hole axially extended is provided on sleeve and upper connecting rod, the fixed link is passed through from the hole, the position of the fixed link is fixed, to make sleeve and upper connecting rod that can move up and down relative to fixed link, it is provided with latch lever on the lower connecting rod, the movable span axially extended is additionally provided on the upper connecting rod, the latch lever passes through movable span and is mounted on lower connecting rod, to make upper connecting rod that can move up and down relative to movable span.The utility model structure is simple, opening velocity is fast, solve the problems, such as the rigid collision of electromagnetic repulsion mechanism Yu divide-shut brake permanent magnet mechanism, during emergency opening, electromagnetic repulsion mechanism is completely independent with divide-shut brake permanent magnet mechanism, permanent magnet mechanism will not influence the opening velocity of electromagnetic repulsion mechanism, spring caused by rigid collision is avoided, the opening velocity of high-speed switch is improved.
Description
Technical field
The utility model belongs to device for switching technical field, and in particular to a kind of breaking-closing operating provided for high-speed switch
Mechanism.
Background technique
With the sustainable growth of direct current system capacity and the continuous improvement of voltage class, the short circuit current peak of dc circuit breaker
Value and the index of switch off time are also being continuously improved.Although traditional mechanical switch carrying load ability is strong, stable advantage is connected,
But response speed is slow, generally in 5~20ms or so, is not able to satisfy and some needs quick acting requirement；Power electronics solid-state is opened
Fast response time is closed, but its on-state loss is excessive, voltage endurance capability is low.It is made of Fast mechanical switch and solid-state devices hybrid
Dc circuit breaker has many advantages, such as that discharge capacity is big, turn-off speed is fast, and current limiting capacity is strong, cut-offs field with very big in direct current
Potentiality.
Hybrid dc circuit breaker is made of above two switch, and under nominal situation, operating current is where mechanical switch
Branch undertake.When short trouble occurs, mechanical switch branch is first turned off fault current, by current switching to power electronics branch
Road.The overvoltage and energy that interrupting process generates are limited and are absorbed by energy-absorbing circuit.Mixed type dc circuit breaker combines machinery
The advantages of switch and solid electronic switch, it may be implemented quickly to cut-off short circuit current without electric arc, be that dc switch technology develops
Inevitable direction.Wherein, the research of Fast mechanical switch is one of the key technology of mixed type dc circuit breaker.
Traditional circuit breaker operation mechanism, the response speed such as hydraulic mechanism and spring mechanism are slower, it is difficult to reach direct current
The actuation time of Fast mechanical switch requires in breaker.The design scheme of Fast mechanical switch uses double electromagnetism mostly at this stage
Repulsive force mechanism needs two repulsion coils, and two sets of driving circuits, mechanism and driving circuit volume are larger, at high cost, is unfavorable for breaking
Road device minimizes, is intensive.Therefore in theoretical research and principle prototype stage, there is no can for Fast mechanical switch many places at this stage
The engineer application case leaned on has seriously affected the development and use of hybrid dc circuit breaker.Also there is the use of part design scheme
Single electromagnetic repulsion mechanism realizes separating brake, using electromagnet or unicoil permanent magnetic actuator as closing holding mechanism, electromagnetic repulsion force machine
Structure can be rapidly achieved thrust peak value within tens to hundreds of microseconds time, far faster than electromagnet or permanent magnet mechanism movement when
Between, when leading to electromagnetic repulsion mechanism separating brake, electromagnet or permanent magnet mechanism still provide closing retention force, thus can reduce Quick mechanical
The opening velocity of switch increases opening time, while will cause the rigid collision of electromagnetic repulsion mechanism and closing holding mechanism, makes
At bounce.
Chinese patent application 201720539425.9 discloses a kind of piston mechanism of Fast mechanical switch, including separating brake line
Circle, pull rod, piston cylinder, closing coil, repulsion dish, sliding block and spring, the sliding block and spring are each provided in piston rod, the bullet
One end of spring offsets with piston cylinder, and one end of the other end and sliding block offsets, and the repulsion dish are located in the inner cavity of piston cylinder, and denounces
The articulated connection of the other end of power disk and sliding block, the pull rod are fixedly connected with repulsion dish, the opening coil and closing coil point
It is not located at the two sides up and down of repulsion dish, and is equipped with gap between opening coil and repulsion dish.The utility model is integrated with electronic reprimand
Power close/open machine, and switching on and off state retention force is provided for mechanical switch, while mitigating dynamic contact mechanism quality, it improves
Divide-shut brake speed.But above-mentioned high-speed switch is using double electromagnetic repulsion mechanisms, needs two repulsion coils, two sets of driving circuits,
Mechanism and driving circuit volume are larger, at high cost, are unfavorable for breaker and minimize, is intensive.
Summary of the invention
The utility model aim is: being directed to the deficiencies in the prior art, proposes that a kind of structure is simple, opening velocity is fast
Opening/closing operation mechanism, and be able to solve the rigid collision problem of electromagnetic repulsion mechanism Yu divide-shut brake permanent magnet mechanism.
Specifically, the utility model adopts the following technical solutions realization:
A kind of high-speed switch opening/closing operation mechanism, including sleeve, fixed link, upper connecting rod and lower connecting rod；The set
Cylinder is sheathed on outside upper connecting rod, is provided with the hole axially extended on sleeve and upper connecting rod, and the fixed link is from described
Hole passes through, and the position of the fixed link is fixed, thus make sleeve and upper connecting rod that can move up and down relative to fixed link, it is described
It is provided with latch lever on lower connecting rod, the movable span axially extended is additionally provided on the upper connecting rod, the latch lever is worn
It crosses movable span to be mounted on lower connecting rod, to make upper connecting rod that can move up and down relative to movable span.
Further, the hole axially extended being arranged on sleeve is waist-shaped hole；What is be arranged on upper connecting rod prolongs along axial direction
The hole stretched is snap arm hole.
Further, the axial extension of the kidney slot is less than snap arm hole.
Further, it is provided with snap arm hole on the upper connecting rod, is provided with snap arm in the upper connecting rod；The snap arm
Spring is housed, when snap arm is located at snap arm hole site, the elastic force of spring is by snap arm ejecting card between lower section and upper connecting rod bottom
Arm aperture.
Further, hoodle is additionally provided on the upper connecting rod；The sleeve is equipped with lock hole, hoodle and lock hole pair
On time, it is popped up from lock hole.
Further, the lock hole is axially disposed 2.
Further, the upper end of the snap arm is rotatably mounted in upper connecting rod.
Further, the spring is torsional spring, including supporting section and suppresses section, and the supporting section is supported in upper connecting rod bottom
Portion, the outer end for suppressing section is abutted against with snap arm, and outside thrust is imposed to snap arm.
Further, when upper connecting rod is moved upwards relative to sleeve, the top edge of snap arm gradually reaches sleeve lower edge
Position, sleeve rotate snap arm the active force of snap arm, so that the exposed parts of snap arm be made to withdraw from snap arm hole.
Further, the side in the snap arm close to sleeve is provided with arc transiting surface.
The beneficial effects of the utility model are as follows:
The opening/closing operation mechanism that structure is simple, opening velocity is fast solves electromagnetic repulsion mechanism and divide-shut brake permanent magnet mechanism
Rigid collision problem, during emergency opening, electromagnetic repulsion mechanism is completely independent with divide-shut brake permanent magnet mechanism, permanent magnet mechanism
The opening velocity that will not influence electromagnetic repulsion mechanism avoids bounce caused by rigid collision, improves the separating brake of high-speed switch
Speed；Simultaneously the utility model electromagnetic repulsion mechanism and permanent magnet mechanism sub-switching operation may be implemented, provide two groups it is complete
Independent brake separating mechanism realizes quick acting switching-off by electromagnetic repulsion mechanism in fault condition, in normal conditions, leads to
It crosses permanent magnet mechanism and realizes normal separating brake, reduce the action frequency of permanent magnet mechanism, greatly improve the reliability and work of high-speed switch
Make the service life.
Detailed description of the invention
Fig. 1 is the structural front view of high-speed switch opening/closing operation mechanism.
Fig. 2 is high-speed switch opening/closing operation mechanism explosive view.
Fig. 3 is the structure left view of high-speed switch opening/closing operation mechanism.
Fig. 4 is high-speed switch opening/closing operation mechanism mounted inside main view.
Fig. 5 is high-speed switch opening/closing operation mechanism mounted inside stereoscopic schematic diagram.
Fig. 6 is sub-switching operation original state schematic diagram under nominal situation.
Fig. 7 is the status diagram after sub-switching operation starts under nominal situation.
Fig. 8 is sub-switching operation completion status schematic diagram under nominal situation.
Fig. 9 is closing operation original state schematic diagram under nominal situation.
Figure 10 is the status diagram after closing operation starts under nominal situation.
Figure 11 is closing operation intermediate state schematic diagram under nominal situation.
Figure 12 is closing operation completion status schematic diagram under nominal situation.
Figure 13 is emergency opening original state schematic diagram under fault condition.
Figure 14 is the status diagram after emergency opening starts under fault condition.
Figure 15 is emergency opening intermediate state schematic diagram under fault condition.
Figure 16 is emergency opening completion status schematic diagram under fault condition.
Label in figure: 1- sleeve, 11- kidney slot, the upper lock hole of 12-, lock hole under 13-, 2- upper connecting rod, 21- bullet
Pearl, 22- snap arm hole, 23- movable span, 3- fixed link, 4- snap arm, 5- spring, 6- blocking lever, 7- lower connecting rod.
Specific embodiment
The utility model is described in further detail below with reference to embodiment and referring to attached drawing.
Embodiment 1:
The specific embodiment structure of the utility model high-speed switch opening/closing operation mechanism is referring to Fig. 1-5, the operating mechanism
Mainly include sleeve 1, upper connecting rod 2, lower connecting rod 7 and fixed link 3, wherein the moving contact of upper connecting rod 2 and high-speed switch, point
Closing holding mechanism is connected with electromagnetic repulsion mechanism and (does not show in attached drawing), and lower connecting rod 7 is connected with divide-shut brake permanent magnet mechanism
It connects and (is not shown in attached drawing).In normal conditions, divide-shut brake permanent magnet mechanism realizes normal separating brake behaviour by lower connecting rod 7
Make, closing operation.Under fault condition, electromagnetic repulsion mechanism realizes quick acting switching-off operation by upper connecting rod 2.
The fixed link 3 position in whole operation mechanism be it is fixed, sleeve 1, upper connecting rod 2 and lower connecting rod 7 are equal
It is moved up and down relative to fixed link 3.Sleeve 1 is co-axially mounted with upper connecting rod 2, i.e., the central axes of the two are in same straight line
On, and the internal diameter of sleeve 1 is slightly larger than the outer diameter of upper connecting rod 2, sleeve 1 can slide up and down outside upper connecting rod 2；Sleeve 1 or so
Position on the lower side is respectively provided with a kidney slot 11 in the middle part of two sides (visual angle Fig. 1), in the left and right sides corresponding position of upper connecting rod 2
It is respectively provided with a same widths but snap arm hole 22 longer than 11 length of kidney slot, the width in kidney slot 11 and snap arm hole 22 is equal to
Or the outer diameter slightly larger than fixed link 3, fixed link 3 are inserted, kidney slot 11 and snap arm hole 22 can limit sleeve 1 and upper company
The displacement that the relatively fixed bar 3 of arm 2 moves up and down is connect, when the upper end of kidney slot 11 or lower end or 22 upper end of snap arm hole and fixed link
Movement before just cannot being further continued for after 3 contacts.Position on the upper side is respectively provided with two lockings in the middle part of 1 front and rear sides of sleeve
Hole --- upper lock hole 12 and lower lock hole 13 are accordingly respectively provided with a hoodle 21 on 2 front and rear sides top of upper connecting rod,
When sleeve 1 is slided up and down with respect to upper connecting rod 2, hoodle 21 can be in upper lock hole 12 and lower lock hole 13 freely bullet
Out and retract.When hoodle 21 is when upper lock hole 12 or lower lock hole 13 pop up, by the position between sleeve 1 and upper connecting rod 2
Locking is set, the two upwardly or downwardly moves simultaneously, when hoodle 21 retracts, is slided relatively between sleeve 1 and upper connecting rod 2
It is dynamic.A snap arm 4 is respectively equipped in the lower half portion in two snap arm holes 22, snap arm 4 passes through the movable axis peace in snap arm hole 22
In snap arm hole 22.It is set in cavity below snap arm 4 between 2 bottom of upper connecting rod there are two spring 5, spring 5 can be with
Snap arm 4 is popped up from snap arm hole 22 by elastic force.2 bottom of upper connecting rod two, 5 middle section of spring is in downward projection of half
It is arc-shaped, it is respectively equipped with the movable span 23 of a kidney-shaped in the position where the arc-shaped curved surface of 2 front and rear sides of upper connecting rod, under
7 corresponding position of connecting rod is equipped with the blocking lever 6 for running through front and back, and the blocking lever 6 passes through two movable spans 23 and is mounted on down
In connecting rod 7, while keeping upper connecting rod 2 and lower connecting rod 7 up and down with respect to other side, upper connecting rod 2 and lower connection
A certain range of linkage may be implemented between bar 7.
Sub-switching operation process under nominal situation is referring to Fig. 6-8.It closes a floodgate as shown in fig. 6, high-speed switch initial position is in
State, sleeve 1 is in closing position at this time, and fixed link 3 is located at the lower section of the kidney slot 11 of sleeve 1, the snap arm in upper connecting rod 2
4 since in the constraint income snap arm hole 22 of sleeve 1, hoodle 21 is aligned with the upper lock hole 12 in sleeve 1, and hoodle 21 is from locking
Determine pop-up in hole 12.Blocking lever 6 is located at the lower section of movable span 23 on upper connecting rod 2.After normal sub-switching operation starts, such as Fig. 7 institute
Show, lower connecting rod 7 moves downward, and blocking lever 6 drives upper connecting rod 2 to move downward.Due to hoodle 21 out of upper lock hole 12 bullet
Out, when upper connecting rod 2 moves downward, band moving sleeve 1, which synchronizes, to be moved downward, until fixed link 3 is located at the kidney slot 11 of sleeve 1
Top.As shown in figure 8, lower connecting rod 7 continues to move downward, and since fixed link 3 is located at the top of the kidney slot 11 of sleeve 1, set
Cylinder 1 can not continue to move downward, and hoodle 21 is retracted from upper lock hole 12, and lower connecting rod 7 is followed to move downward, until under
13 aligned in position of lock hole is popped up from lower lock hole 13, and upper connecting rod 2 is located at open position at this time, and spring 5 is by snap arm hole 22
Interior snap arm 4 pops up, and high-speed switch completes normal sub-switching operation, and switch is in gate-dividing state.
Closing operation process under nominal situation is referring to Fig. 9-12.As shown in figure 9, high-speed switch initial position is in separating brake
State.As shown in Figure 10, after starting combined floodgate, lower connecting rod 7 is moved upwards, and blocking lever 6 is in the movable span 23 on upper connecting rod 2
It moves upwards, lower connecting rod 7 is contacted with the snap arm 4 of pop-up.As shown in figure 11, lower connecting rod 7 continues up, and pushes pop-up
Snap arm 4 move upwards, since hoodle 21 is popped up from lower lock hole 13, when upper connecting rod 2 moves upwards band moving sleeve 1 upwards transport
It is dynamic, until the lower section of kidney slot 11 is contacted with fixed link 3.The lower section of kidney slot 11 and after fixing 3 contacts, lower connecting rod 7 is no longer
Movement, keeps this position.As shown in figure 12, upper connecting rod 2 is continued up by the promotion of divide-shut brake holding mechanism, due to kidney-shaped
The lower section in hole 11 is contacted with fixed link 3, and sleeve 1 can not continue up, and hoodle 21 is retracted from lower lock hole 13, and is followed
Upper connecting rod 2 moves upwards, until with upper 12 aligned in position of lock hole, popped up from upper lock hole 12.Card in upper connecting rod 2
Arm 4 is taken in snap arm hole 22 due to the constraint of sleeve 1.Blocking lever 6 is located at the lower section of the movable span 23 of sleeve 1, and high-speed switch is complete
At closing operation, it is in "on" position.
Emergency opening under fault condition is operated referring to Figure 13-16.As shown in figure 13, high-speed switch initial position, which is in, closes
Lock state, sleeve 1 is in closing position at this time, and fixed link 3 is located at the lower section of the kidney slot 11 of sleeve 1, the card in upper connecting rod 2
Arm 4 is taken in snap arm hole 22 due to the constraint of sleeve 1, and hoodle 21 is aligned with the upper lock hole 12 in sleeve 1, and hoodle 21 is from upper
Pop-up in lock hole 12.Blocking lever 6 is located at the lower section of the movable span 23 of sleeve 1.As shown in figure 14, on electromagnetic repulsion mechanism drives
Connecting rod 2 moves downward, and since hoodle 21 is popped up out of upper lock hole 12, when upper connecting rod 2 moves downward, band moving sleeve 1 is same
Step moves downward, until fixed link 3 is located at the top of the kidney slot 11 of sleeve 1.As shown in figure 15, upper connecting rod 2 continues downwards
Movement, since fixed link 3 is located at the top of the kidney slot 11 of sleeve 1, sleeve 1 can not continue to move downward, and hoodle 21 is from locking
Determine to retract on hole 12, and lower connecting rod 7 followed to move downward, until with lower 13 aligned in position of lock hole, from lower lock hole 13
Pop-up.Snap arm 4 can not be popped up due to the constraint of lower connecting rod 7 from snap arm hole 22, and blocking lever 6 is located at the movable span 23 of sleeve 1
Top, upper connecting rod 2 is in gate-dividing state, and during the opening process, it is swollen that upper connecting rod 2 will not generate rigidity with lower connecting rod 7
It is swollen, it avoids bouncing.As shown in figure 16, divide-shut brake permanent magnet mechanism drives lower connecting rod 7 to move downward, and blocking lever 6 is made to be located at sleeve 1
Movable span 23 lower section, high-speed switch complete emergency opening, switch be in gate-dividing state.
Although the utility model has been described by way of example and in terms of the preferred embodiments, embodiment is not for limiting the utility model
's.In the spirit and scope for not departing from the utility model, it is practical new to also belong to this for any equivalent change or retouch done
The protection scope of type.Therefore the protection scope of the utility model should be mark with the content that claims hereof is defined
It is quasi-.
Claims (10)
1. a kind of high-speed switch opening/closing operation mechanism, it is characterised in that: including sleeve (1), fixed link (3), upper connecting rod (2)
With lower connecting rod (7)；The sleeve (1) is sheathed on upper connecting rod (2) outside, is provided on sleeve (1) and upper connecting rod (2)
The hole axially extended, the fixed link (3) pass through from the hole, and the position of the fixed link (3) is fixed, to make sleeve
(1) it can move up and down relative to fixed link (3) with upper connecting rod (2), be provided with latch lever (6) on the lower connecting rod (7),
The movable span (23) axially extended is additionally provided on the upper connecting rod (2), the latch lever (6) is pacified across movable span (23)
On lower connecting rod (7), to make upper connecting rod (2) that can move up and down relative to movable span (23).
2. high-speed switch opening/closing operation mechanism according to claim 1, it is characterised in that: the edge being arranged on sleeve (1)
Axially extending hole is waist-shaped hole (11)；The hole axially extended being arranged on upper connecting rod (2) is snap arm hole (22).
3. high-speed switch opening/closing operation mechanism according to claim 2, it is characterised in that: the axis of the waist-shaped hole (11)
It is less than snap arm hole to development length.
4. high-speed switch opening/closing operation mechanism according to claim 1, it is characterised in that: on the upper connecting rod (2)
It is provided with snap arm hole (22), is provided with snap arm (4) in the upper connecting rod (2)；Snap arm (4) lower section and upper connecting rod (2)
Spring (5) are housed between bottom, when snap arm (4) is located at snap arm hole (22) position, the elastic force of spring (5) pops up snap arm (4)
Snap arm hole (22).
5. high-speed switch opening/closing operation mechanism according to claim 1, it is characterised in that: on the upper connecting rod (2)
It is additionally provided with hoodle (21)；The sleeve (1) is equipped with lock hole, when hoodle (21) is aligned with lock hole, pops up from lock hole.
6. high-speed switch opening/closing operation mechanism according to claim 5, it is characterised in that: the lock hole is set along axial direction
It is equipped with 2.
7. high-speed switch opening/closing operation mechanism according to claim 4, it is characterised in that: the upper end of the snap arm (4)
It is rotatably mounted in upper connecting rod (2).
8. high-speed switch opening/closing operation mechanism according to claim 4, it is characterised in that: the spring (5) is torsional spring,
Including supporting section and suppress section, the supporting section is supported in upper connecting rod (2) bottom, the outer end for suppressing section and snap arm (4)
It abuts against, and outside thrust is imposed to snap arm (4).
9. high-speed switch opening/closing operation mechanism according to claim 4, it is characterised in that: upper connecting rod (2) relative to
When sleeve (1) moves upwards, the top edge of snap arm (4) gradually reaches sleeve (1) lower edge position, and sleeve (1) is to snap arm (4)
Active force rotates snap arm (4), so that the exposed parts of snap arm (4) be made to withdraw at snap arm hole (22).
10. high-speed switch opening/closing operation mechanism according to claim 9, it is characterised in that: close on the snap arm (4)
The side of sleeve (1) is provided with arc transiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244582.8U CN208781729U (en) | 2018-08-02 | 2018-08-02 | A kind of high-speed switch opening/closing operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821244582.8U CN208781729U (en) | 2018-08-02 | 2018-08-02 | A kind of high-speed switch opening/closing operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208781729U true CN208781729U (en) | 2019-04-23 |
Family
ID=66155845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821244582.8U Active CN208781729U (en) | 2018-08-02 | 2018-08-02 | A kind of high-speed switch opening/closing operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208781729U (en) |
-
2018
- 2018-08-02 CN CN201821244582.8U patent/CN208781729U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211106 No. 11 Daquan Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. Address before: 211106 No. 11 Daquan Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU DAQO KAIFAN ELECTRICAL APPLIANCE Co.,Ltd. |